Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469178 | Procedure for producing formylimidazoles | Yves Bessard | 2002-10-22 |
| 6258958 | Procedure for producing formyl imidazoles | Yves Bessard | 2001-07-10 |
| 6080865 | Piperidinopentanamines, process for producing them and their use as a catalyst for producing urethanes | Andreas Gerhard | 2000-06-27 |
| 6075145 | Catalysts containing zirconium oxide | David Laffan, Alain Wellig | 2000-06-13 |
| 6054497 | Process for producing methanol and catalyst therefor | Alkis Sofianos, Erich Armbruster, Olaf Frei | 2000-04-25 |
| 6040457 | Process for the preparation of formylimidazoles | Alain Wellig | 2000-03-21 |
| 5917051 | Process for the preparation of formylimidazoles | Alain Wellig | 1999-06-29 |
| 5719045 | Process for preparing nicotinamide | Erich Armbruster, Lukas Utiger, Markus Rohner, Hans-Rudolf Dettwiler, Roderick J. Chuck | 1998-02-17 |
| 5714610 | Process for the preparation of 3-methylpiperidine and 3-methylpyridine by catalytic cyclization of 2-methyl-1, 5-diaminopentane | Erich Armbruster, Walter Siegrist | 1998-02-03 |
| 5698607 | Tertiary diamine, its use as catalyst, and process for preparing tertiary diamines | Andreas Gerhard, Ulrich Daum | 1997-12-16 |
| 5310952 | Method for the preparation of 6-hydroxy-2,5,7,8-tetraalkyl-2-(4-aminophenoxymethyl) chromans | — | 1994-05-10 |
| 5284961 | Process for the preparation of 6-hydroxy-2,5,7,8-tetraalkyl-2-(4-aminophenoxymethyl) chromans | — | 1994-02-08 |